Patent classifications
B66C1/12
Lifting arrangement for lifting a wind turbine component
A lifting arrangement (1) for lifting a wind turbine tower segment (2), the lifting arrangement (1) comprising at least two component pulley arrangements (3) connected to a flange (5) of the tower segment, and at least one hoisting pulley arrangement (4), arranged to be connected to a hoisting apparatus. A rope (8) interconnects the component pulley arrangements (3) and the hoisting pulley arrangements (4), in such a manner that each component pulley arrangement (3) is connected to two hoisting pulley arrangements (4), or to one hoisting pulley arrangement (4) and a rope end attachment point (9), via the rope (8), and each hoisting pulley arrangement (4) is connected to two component pulley arrangements (3), via the rope (8), the rope (8) being arranged movably in each pulley arrangement (3, 4). The tower segment (2) is automatically rotated from a first orientation into a second orientation during the lifting process. Load distribution among various parts of the rope (8) is ensured.
Lifting arrangement for lifting a wind turbine component
A lifting arrangement (1) for lifting a wind turbine tower segment (2), the lifting arrangement (1) comprising at least two component pulley arrangements (3) connected to a flange (5) of the tower segment, and at least one hoisting pulley arrangement (4), arranged to be connected to a hoisting apparatus. A rope (8) interconnects the component pulley arrangements (3) and the hoisting pulley arrangements (4), in such a manner that each component pulley arrangement (3) is connected to two hoisting pulley arrangements (4), or to one hoisting pulley arrangement (4) and a rope end attachment point (9), via the rope (8), and each hoisting pulley arrangement (4) is connected to two component pulley arrangements (3), via the rope (8), the rope (8) being arranged movably in each pulley arrangement (3, 4). The tower segment (2) is automatically rotated from a first orientation into a second orientation during the lifting process. Load distribution among various parts of the rope (8) is ensured.
Adjustable spreader bar
A spreader bar apparatus provides a bar member having a bar length and first and second bar end portions. A plurality of transverse bar openings are spaced between the bar and end portions. A first bar lifting portion or link assembly is movable relative to the bar and into different positions. A second bar lifting portion or link assembly is movable relative to the bar and into different positions. Each bar lifting portion or link assembly has a trunnion sleeve fitted with multiple links. One or more lifting lines are each attachable to the lifting portions such as to an upper link or lower link. Each lifting member includes an upper link, a lower link, and a trunnion sleeve, wherein the trunnion sleeve has a bore that is sized and shaped to receive the bar, wherein the upper and lower links are rotatably mounted to the trunnion sleeve. One or more pins enable the trunnion sleeve to be attached to the bar at a selected bar opening.
ANCHORING PLATFORM FOR CAPTIVE LIGHTER-THAN-AIR AIRCRAFT
The present disclosure relates to an anchoring platform for captive aircraft that addresses one of the main problems when handling captive aerostats, which is the excessive workload required to switch between flying and anchored states. The technology disclosed herein requires only one person to install the structure and the operation can be performed remotely or by a person. Additionally, cords, together with the confluence point, are wound into the anchoring device, the winch. The structure for anchoring the captive aircraft is the cradle which bears the aerostat, while the winch exerts tension to hold same static in the structure.
ANCHORING PLATFORM FOR CAPTIVE LIGHTER-THAN-AIR AIRCRAFT
The present disclosure relates to an anchoring platform for captive aircraft that addresses one of the main problems when handling captive aerostats, which is the excessive workload required to switch between flying and anchored states. The technology disclosed herein requires only one person to install the structure and the operation can be performed remotely or by a person. Additionally, cords, together with the confluence point, are wound into the anchoring device, the winch. The structure for anchoring the captive aircraft is the cradle which bears the aerostat, while the winch exerts tension to hold same static in the structure.
MULTI-ARMED LIFTING ACCESSORY
A Multi-Armed Lifting Accessory is disclosed herein which is compact and transportable in various deployments. The Multi-Armed Lifting Accessory is advantageous and useful as it has hingedly connected loading and support arms attached to a main lifter body. The supporting arms are spring loaded allowing the Multi-Armed Lifting Accessory to stably engage with irregular shaped objects such as barge lid or a skid steer loader and allows for flexible engagement and balanced lifting operations.
DEVICES FOR HOISTING CABLES
The present disclosure describes devices and assemblies for hoisting cables. A hoisting grip may comprise a main body formed of a polymeric material, the main body having a length, a width, a thickness, and a longitudinal axis and comprising a plurality of apertures where at least one aperture may be adapted to receive a hoisting member and at least two apertures may be adapted to receive a cable
Device and method for lifting an object from a deck of a vessel subject to movements
Described is a device for lifting an elongated object from a deck of a vessel subject to movements in a heave direction. The device comprises rigid supports provided on the deck of the vessel for supporting the object at a first height relative to the deck, and retractable supports provided on the deck of the vessel for supporting the object at a second height relative to the deck, which second height is larger than the first height. A lifting crane is configured to take up the object from the retractable supports at the second height. An actuator system is configured to lower the retractable supports in the heave direction to a third height relative to the deck at the instant in time the object is lifted from the retractable supports, the third height being smaller than the second height. A method using the device is also described.
DEVICE AND METHOD FOR LIFTING AN OBJECT FROM A DECK OF A VESSEL SUBJECT TO MOVEMENTS
Described is a device for lifting an elongated object from a deck of a vessel subject to movements in a heave direction. The device comprises rigid supports provided on the deck of the vessel for supporting the object at a first height relative to the deck, and retractable supports provided on the deck of the vessel for supporting the object at a second height relative to the deck, which second height is larger than the first height. A lifting crane is configured to take up the object from the retractable supports at the second height. An actuator system is configured to lower the retractable supports in the heave direction to a third height relative to the deck at the instant in time the object is lifted from the retractable supports, the third height being smaller than the second height. A method using the device is also described.
SLING BARS FOR LIFTING SYSTEMS AND METHODS FOR OPERATING SLING BARS
A sling bar includes a bar extending between a first end and a second end, and a sling attachment member positioned at at least one of the first end and the second end, the sling attachment member including a bar attachment portion coupled to the bar, a lift hook extending outward from the bar attachment portion, the lift hook defining an upward-facing opening, and a latch member pivotally coupled to one of the bar attachment portion or the lift hook, where the latch member is repositionable between a closed position, in which the latch member extends across the upward-facing opening and engages the other of the lift hook or the bar attachment portion, and an open position, in which the latch member is spaced apart from the upward-facing opening and the other of the lift hook or the bar attachment portion.